Editor's Note: Gallup re-estimated its Gallup-Healthways Well-Being Index and Life Evaluation Index data from January 2008 to April 2009 to address context effects that Gallup discovered after the data were originally published.

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On a given day, 49% of Americans experience a lot of enjoyment/happiness, while 10% experience intense stress/worry. The percentage of Americans who experience a lot of happiness/enjoyment compared to those who experience intense stress/worry is highest for those who report spending six to seven hours socializing.